Production implementation phase T2 (~4 days). Can run in parallel with T3.
Changes:
- Production _bulk_reconcile_suspend() / _bulk_reconcile_resume()
- Strict preserve / rebind / reset contract per the field classification table in implementation_details.md Section 2
- __rec_init() is NOT modified
Test: catch2 — verify key fields are preserved correctly across suspend/resume cycles
Depends on: WT-17212 (T1)
Can run in parallel with: T3